his sign washington's city and the design for a palace. it was not particularly awe inspiring. in 1821, a diplomat said it was neither large nor awe inspiring, but the sponsor -- the answer said if it were larger or more elegant, perhaps some president would be inclined to become a permanent resident. >> new york times photo credit has gathered some of her favorite photographs of the white house. watch tonight at 7:30 p.m. eastern and pacific on "american history tv." >> i think the challenge for us is we want to be on every device for every person on every hour of the day. we are a mobile society. the challenge is to make sure that we are on ipads, computers, phones, as well as the traditional viewing on a wonderful high-definition television screen. the other challenge we have is the spectrum is a finite resource. there's not enough spectrum in the universe to do all video by broadband. it will always fail because of the transmission of video one to one. you cannot do that. >> the head of the nab, gordon smith. >> as president obama begins his second term in office, what is t